Orbit Fit and Astrometric record for 03FJ127

The following information shows the result of the orbit fit based on Gary Bernstein's method. Most of the information should be self-explanatory. Take special note that while the original Bernstein software works with barycentric coordinates, we convert these results into a heliocentric coordinate system.

# Object: 03FJ127   
# Created Mon Oct 23 01:37:22 2017
# Orbit generated from Bernstein formalism
# Fitting   18 observations of   18
# Arc:   1.97y
# First observation: 2002/03/05
#  Last observation: 2004/02/22
Preliminary a, adot, b, bdot, g, gdot:
  -0.000096   0.022359  -0.000024   0.009418   0.024550   0.000000
# Chi-squared of fit:    47.26 DOF:   30 RMS:  0.29
# Min/Max residuals:    -0.53    0.65
# Exact a, adot, b, bdot, g, gdot:
  1.410069E-05  2.228690E-02  6.732795E-06  9.398696E-03  2.468265E-02 -6.063409E-03
# Covariance matrix:
  4.6982E-13 -6.1557E-13  3.6360E-14 -1.3615E-13 -2.4104E-13 -7.6981E-12
 -6.1557E-13  3.6867E-12 -3.8314E-13  1.4497E-12  3.9084E-12  8.1272E-11
  3.6360E-14 -3.8314E-13  4.1554E-13 -4.2481E-13 -4.4143E-13 -9.0564E-12
 -1.3615E-13  1.4497E-12 -4.2481E-13  8.4967E-13  1.6740E-12  3.4282E-11
 -2.4104E-13  3.9084E-12 -4.4143E-13  1.6740E-12  4.8402E-12  9.3674E-11
 -7.6981E-12  8.1272E-11 -9.0564E-12  3.4282E-11  9.3674E-11  1.9212E-09
#      lat0       lon0       xBary       yBary       zBary        JD0
    1.313753  165.313647    0.009500    0.022650   -0.991049  2452338.732058
# Heliocentric elements and errors
Epoch:              2452330.5000  =  2002/02/25
Mean Anomaly:          300.80757 +/-     0.146
Argument of Peri:       90.67006 +/-     0.019
Long of Asc Node:      162.25051 +/-     0.000
Inclination:            22.87025 +/-     0.001
Eccentricity:         0.25115589 +/-    0.0019
Semi-Major Axis:     44.81114406 +/-    0.0531
Time of Perihelion: 2470345.7865 +/-      30.7
Perihelion:          33.55656123 +/-    0.0930
Aphelion:            56.06572689 +/-    0.1072
Period (y)              299.9765 +/-      0.53
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X          -40.13595472 +/-    0.0035
Ecliptic Y           10.53429688 +/-    0.0009
Ecliptic Z            0.92916552 +/-    0.0001
Ecliptic XDOT         0.00003835 +/-    0.0000
Ecliptic YDOT        -0.00256885 +/-    0.0000
Ecliptic ZDOT         0.00102705 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   41.50577816 +/-    0.0034
Geocenter to KBO     40.51428286 +/-    0.0036
# Hcoef:  7.04

The following table shows the complete astrometric record for 03FJ127. The first three columns show the date of observation. The next six columns are RA and DEC. The next column (when provided) is the observed magnitude and filter. The next column is the object name (03FJ127) followed by the observatory code and reference code for the source of the astrometry.

2002 03  05.231315 11 07 57.85   +06 59 57.3         03FJ127   645  C~1ReC      
2002 03  05.232144 11 07 57.85   +06 59 57.3         03FJ127   645  C~1ReC      
2002 03  05.234632 11 07 57.84   +06 59 57.4         03FJ127   645  C~1ReC      
2003 03  30.24086  11 11 45.56   +07 13 35.9   23.3R 03FJ127   695  Ch8427      
2003 03  30.34010  11 11 45.12   +07 13 38.9         03FJ127   695  Ch8427      
2003 03  31.31121  11 11 41.12   +07 14 08.0         03FJ127   695  Ch8427      
2003 04  01.217355 11 11 37.37   +07 14 35.3         03FJ127   645  C~1ReC      
2003 04  01.218184 11 11 37.37   +07 14 35.3         03FJ127   645  C~1ReC      
2003 04  01.220672 11 11 37.36   +07 14 35.4         03FJ127   645  C~1ReC      
2003 04  21.00066  11 10 26.25   +07 23 23.2   20.8R 03FJ127   304  Ch8427      
2003 04  21.06039  11 10 26.08   +07 23 24.7         03FJ127   304  Ch8427      
2003 05  31.30813  11 09 26.77   +07 31 36.7   23.4R 03FJ127   568  Ci1570      
2003 06  01.29455  11 09 27.03   +07 31 37.5         03FJ127   568  Ci1570      
2003 06  02.26688  11 09 27.41   +07 31 38.2         03FJ127   568  Ci1570      
2003 12  18.54657  11 22 46.06   +06 26 42.8   23.2R 03FJ127   568  Ck9589      
2003 12  18.64699  11 22 46.10   +06 26 43.8         03FJ127   568  Ck9589      
2004 02  22.38330  11 20 08.33   +06 52 51.2   23.8R 03FJ127   695  Ck9589      
2004 02  22.42483  11 20 08.15   +06 52 52.8         03FJ127   695  Ck9589      

The following table shows the residuals to the orbit fit. The first coumn is the point number. The second column is the time, in years, measured from the first observation. The third and fifth columns are the regularized positions used in the orbit fit. The fourth and sixth columns are the residuals, in arc seconds, for RA and Dec respectively.

  1   0.0000      0.00     0.04       0.00    -0.15
  2   0.0000      0.00     0.10       0.00    -0.15
  3   0.0000     -0.18     0.11       0.03    -0.13
  4   1.0678   2805.12    -0.07    2071.60     0.65
  5   1.0681   2797.92    -0.32    2071.81     0.48
  6   1.0707   2731.74     0.14    2075.42    -0.01
  7   1.0732   2669.70    -0.32    2078.82    -0.42
  8   1.0732   2669.70    -0.26    2078.82    -0.42
  9   1.0732   2669.53    -0.27    2078.86    -0.40
 10   1.1274   1489.38    -0.18    2153.23     0.20
 11   1.1275   1486.46    -0.03    2153.63     0.42
 12   1.2377    482.39     0.30    2264.08     0.10
 13   1.2404    485.64     0.18    2266.32    -0.04
 14   1.2431    490.58     0.40    2269.16     0.46
 15   1.7887  12975.45     0.09    3345.32     0.00
 16   1.7890  12975.60     0.23    3346.48     0.32
 17   1.9689  10188.59    -0.04    3860.24    -0.53
 18   1.9690  10185.49    -0.05    3860.66    -0.36

The following table comes from a 10My integration of the orbit of the object. Three columns are shown. The first column is the result of integrating the nominal orbit. The other two columns are based on clones of the nominal orbit that are +/- 3 sigma from the nominal orbit. If all three types agree then the classificiation is deemed secure. The basis for these calculations is described in more detail in AJ, 129, 1117 (2005). Any use made of these calculations should refer to and credit this publication and the Deep Ecliptic Survey Team.

03FJ127    quality flag:3

Type:       SCATNEAR  SCATNEAR  SCATNEAR

axisobj        44.521    44.679    44.366
ecceobj         0.251     0.256     0.245
incobj         22.942    22.942    22.942
qmin           32.951    32.896    31.169
qmax           57.340    57.509    63.775
amean          44.873    44.932    46.099
amin           44.379    44.476    44.025
amax           45.422    45.422    47.709
emean           0.242     0.244     0.293
emin            0.218     0.222     0.238
emax            0.263     0.266     0.338
imean          22.675    22.742    21.282
imin           21.933    21.933    19.890
imax           23.515    23.566    22.709
excite_mean     0.455     0.457     0.467
fracstop        1.000     1.000     1.000
cjmean          2.857     2.855     2.857

libcent 0      -180.0    -180.0    -180.0
libamp  0      -180.0    -180.0    -180.0
libcent 1      -180.0    -180.0    -180.0
libamp  1      -180.0    -180.0    -180.0
libcent 2      -180.0    -180.0    -180.0
libamp  2      -180.0    -180.0    -180.0
libcent 3      -180.0    -180.0    -180.0
libamp  3      -180.0    -180.0    -180.0
libcent 4      -180.0    -180.0    -180.0
libamp  4      -180.0    -180.0    -180.0

kozaimean       184.7     187.4     183.8
kozaiamp        180.0     180.0     179.9